Mechanical Cipher Systems in the Spanish Civil War. - José Ramón Soler Fuensanta (Cryptologia, 2004)

The Strip Cipher-The Spanish Official Method. - José Ramón Soler Fuensanta; Francisco Javier López-Brea Espiau (Cryptologia, 2007)

Treaty of Cryptography by Joaquín García Carmona? - José Ramón Soler Fuensanta (Cryptologia, 2009)

Spanish Enigma: A History of the Enigma in Spain. - José Ramón Soler Fuensanta; Francisco Javier López-Brea Espiau; Frode Weierud (Cryptologia, 2010)

A Cryptanalysis Service During the Spanish Civil War. - José Ramón Soler Fuensanta; Francisco Javier López-Brea Espiau; Diego Navarro Bonilla (Cryptologia, 2012)

Genetic Algorithms and Mathematical Programming to Crack the Spanish Strip Cipher. - Fco. Alberto Campos; Alberto Gascón; Jesús María Latorre; José Ramón Soler Fuensanta (Cryptologia, 2013)

Revealing Secrets in Two Wars: The Spanish Codebreakers at PC Bruno and PC Cadix. - José Ramón Soler Fuensanta; Francisco Javier López-Brea Espiau; Diego Navarro Bonilla (Cryptologia, 2013)

States by secrecy: Cryptography and guerrillas in the Spanish Civil War. - José Ramón Soler Fuensanta; Vicente Guasch Portas (Cryptologia, 2016)

How to make a codebook versatile. The example of the ASLET code. - José Ramón Soler Fuensanta; Héctor Soler Bonet; Diego Navarro Bonilla (Cryptologia, 2021)